Here is an excellent series of instructional videos on how to change the fuser and rollers in many types of printers:
YouTube – Lexmark T630 T632 T634 Fuser Maintenance Kit Replacement.
Tom Braeger
Tom Braeger is the international sales and eCommerce manager at Lake Erie System's www.FastPrinters.com. He also works with his wife Analida as site manager, taste tester and food photographer for Analida's Ethnic Spoon at EthnicSpoon.com